CBSE 2024 · Region 1 · Set 1 · Q28 · 3 marks
(a)State any two properties of a nucleus.(b)Why is the density of a nucleus much more than that of an atom?(c)Show that the density of the nuclear matter is the same for all nuclei.
(a)
State any two properties of a nucleus.
(b)
Why is the density of a nucleus much more than that of an atom?
(c)
Show that the density of the nuclear matter is the same for all nuclei.
Marking-scheme solution
a) Stating two properties of a nucleus
b) Why density of a nucleus is much more than that of an atom
c) Showing that density of nuclear matter is same for all nuclei
(i) The nucleus is positively charged
(ii) The nucleus consists of protons and neutrons
(iii) The nuclear density is independent of mass number
(iv) The radius of the nucleus, \(\displaystyle \mathrm{R}=\mathrm{Ro} \mathrm{A}^{1 / 3}\)
(b)
Atoms have large amount of empty spaces. Mass is concentrated in nucleus.
NucleiAtomic Masses and Composition of NucleusUnderstandshort_answermedium
More from Nuclei
- Explain the terms mass defect and binding energy. How are they related?2026 · asked 3×
- (i) Prove that the nuclear density is same for all nuclei. (ii) Draw a plot of potential energy of a pair of…2023 · asked 3×
- Differentiate between nuclear fission and nuclear fusion. Give one example for each with nuclear reaction.2026 · asked 3×
- Assertion: The binding energy per nucleon is practically constant for mass number in the range ( 30<A<170 ).…2025 · asked 3×
- (i) Write any two features of nuclear forces. (ii) If both the number of protons and the neutrons are…2026 · asked 3×
- Assertion: During formation of a nucleus, the mass defect produced is the source of the binding energy of the…2025 · asked 3×
- Which of the following statements is not true for nuclear forces?2023 · asked 3×
- Calculate the energy released in MeV in the following reaction: 1^2 H+ 1^3 H → 2^4 He+n Given: m( 1^2…2022 · asked 3×
CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.